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Re: Fwd: [pfx] Postfix stable release 3.11.2 and legacy releases 3.10.9, 3.9.10, 3.8.16


From: Salvatore Bonaccorso <carnil () debian org>
Date: Mon, 4 May 2026 23:02:44 +0200

Hi,

On Mon, May 04, 2026 at 05:35:38PM +0100, Sam James wrote:
The most significant one here seems to be the first entry under "Fixed
in Postfix 3.8, 3.9, 3.10:".
[...]
Fixed in Postfix 3.8, 3.9, 3.10:

  * Bugfix (defect introduced: Postfix 2.3, date: 20050323): buffer
    over-read when Postfix an enhanced status code is not followed
    by other text. For example, "5.7.2" without text after the
    three-number code. This CANNOT be triggered with an SMTP or
    LMTP server response; is confirmed with an access(5) table and
    likely with a policy server response; can possibly be triggered
    with pipe-to-command output, header_checks(5), body_checks(5),
    an error(8) transport in transport_maps, or a milter response;
    and is confirmed with a DNSBL server TXT response while Postfix
    is configured with "$rbl_code $rbl_text" in rbl_reply_maps or
    default_rbl_reply. This could result in process termination.
    Problem reported by Kamil Frankowicz.

This one got https://www.cve.org/CVERecord?id=CVE-2026-43964 assigned.

Regards,
Salvatore


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